It's ok what you did, but imagine if you wanted an effect on each sample in Redrum (which is very likely, in future), are you going to create 10 Redrums?

The setup I showed you (Redrum -> Mixer) is a very common one. Usually people create that setup once and then save it as the "default" rack. Every time you create a new file, you get the whole setup at once. You can set the default file in settings.